const fs = require('fs')
const path = require('path')
const http = require('http')

let pathurl = path.join(__dirname, '../files/chengji-ok.txt')


let app = http.createServer((req,res)=> {
    res.setHeader("Content-Type", 'text/html;charset=utf-8') 
    readFileFn().then(data=> {
        res.write(data)
        res.end()
    })
})

app.listen(3000, () => {
    console.log('3000 run');
})



let readFileFn = ()=> {
    return new Promise((resolve,reject)=> {
        fs.readFile(pathurl,'utf8',(err,data)=> {
            if(err) {
                reject(err)
            } else {
                resolve(data)
            }
        })

    })
}

let readFileFn1 = ()=> {
    return new Promise((resolve,reject)=> {
        fs.readFile(pathurl,'utf8',(err,data)=> {
            if(err) {
                reject(err)
            } else {
                resolve(data)
            }
        })
    })
}


let readFileFn2 = ()=> {
    return new Promise((resolve,reject)=> {
        fs.readFile(pathurl,'utf8',(err,data)=> {
            if(err) {
                reject(err)
            } else {
                resolve(data)
            }
        })
    })
}

